Add a convenience overload of DWARFDie::dump() for debugging purposes.

llvm-svn: 311026
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp b/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
index 09c0044..42e014f 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
@@ -377,6 +377,8 @@
   }
 }
 
+LLVM_DUMP_METHOD void DWARFDie::dump() const { dump(llvm::errs(), 0); }
+
 DWARFDie DWARFDie::getParent() const {
   if (isValid())
     return U->getParent(Die);